A solution containing both Ag+ and Cu2+ ions is subjected to electrolysis. a. Which metal should plate out first?

A solution containing both Ag+ and Cu2+ ions is subjected to electrolysis.a. Which metal should plate out first? Cu or Agb. Plating out is finished after a current of 0.74 A is passed through the solution for 2.65 h. If the total mass of metal is 3.66 g, what is the mass percent of silver in the product?