3 CuSO4(aq) + 2 Al(s) → Al2(SO4)3(aq) + 3 Cu(s)

How many grams of Al would be needed to displace all of the copper ions in 20.5 mL of 0.690 M CuSO4?

How many grams of Cu would be recovered from the copper ions in 20.5 mL of 0.690 M CuSO4