Electrochemistry Part 2

Electricity is passed through an acidic solution of Cu2+ till all the Cu2+ was exhausted, leading to the deposition of 300 mg of Cu metal. However, a current of 600 mA was continued to pass through the same solution for another 28 minutes by keeping the total volume of the solution fixed at 200 mL . The total volume of oxygen evolved at STP during the entire process is ____ mL . (Nearest integer)

[Given:
‌Cu2+(aq)+2e−⟶Cu(s)Eredo=+0.34V
‌O2(g)+4H++4e−⟶2H2OE‌red ‌o=+1.23V
Molar mass of Cu=63.54gmol−1
Molar mass of O2=32gmol−1
Faraday Constant =96500Cmol−1
Molar volume at STP=22.4L ]