Per Dell's documentation max supported is 8GB, however it's not clarified that if it's limited by chipset or firmware.  Anyway that Core i5 3rd Gen will Bottleneck the memory so there is no point adding more  However Your machine Your rules.  You can try adding 2 sticks of 8GB each for dual channel support.  Corsair Vengeance 16gb Ddr3 1600 Mhz : This will work (theoretically)     
I have a Dell opiplex 3010 with  1050Ti 1tb SSD 8gb ram and an I5 3450I know 16gb will work fine but I don't know WHICH ram will be compatibleI was wondering if this ram will workCorsair Vengeance 16gb Ddr3 1600 Mhz desktop Memory 1.5v CMZ16GX3M2A1600C10
Dell Optiplex 3010 RAM upgrade?