Will the admission committee actually read a student's paper mentioned in resume? (This question is set up under the EECS context, but any generic answer is much welcomed)
It is said that publications during one's undergraduate time will be an advantage in his/her PhD application. Usually, an undergraduate only starts publishing papers in his/her junior (3rd) year, and the application deadline usually comes at the end of his/her junior year. Hence, it is very likely that although the paper has been accepted by or even already presented in a certain conference, yet it has not been included into IEEE Xplore.
If the student has not uploaded the paper to some preprint database, such as arXiv or ResearchGate, then the admission committee will have no access to the paper. Of course, they may still be able to find some information about the paper, e.g., a tittle and an abstract appearing in the conference schedule, but after all they cannot go deeper into the paper content.
Questions

Does the admission committee even bother to go through the paper to assess the work quality? (Sometimes, you can have a rough quality assessment by looking at which journal/conference the paper is accepted by)
If the answer is positive, is it a good idea for the applicant to upload the papers to arXiv and provide the committee with the links so that the committee can read the papers as they wish?
While it's a single N experience from my graduate school application process:


  Does the admission committee even bother to go through the paper to
  assess the work quality? (Sometimes, you can have a rough quality
  assessment by looking at which journal/conference the paper is
  accepted by)


Yes. Several interviews I had mentioned content within the paper, at at least one of them had a good 10 or 15 minute discussion about the research that didn't start with the phrase "So, tell me what your paper was about..."


  If the answer is positive, is it a good idea for the applicant to
  upload the papers to arXiv and provide the committee with the links so
  that the committee can read the papers as they wish?


Yes. If your field is arXiv friendly, put it there. If your field isn't particularly arXiv friendly (like mine) and your paper is in press, consider providing the PDF as a supplement to your admissions packet.