What is the total value of Argentum coined traded in the past 24 hours on 2016/10/11.
total value in the past 24 hours refers to volume_24h; on 11/10/16 refers to date = '2016-11-10'
SELECT T2.volume_24h FROM coins AS T1 INNER JOIN historical AS T2 ON T1.id = T2.coin_id WHERE T1.name = 'Argentum' AND T2.date = '2016-10-11'