Electricity is passed through an acidic solution of \( Cu^{2+} \) till all the \( Cu^{2+} \) was exhausted, leading to the deposition of \( 300 \, \text{mg} \) of Cu metal. However, a current of \( 600 \, \text{mA} \) was continued to pass through the same solution for another \( 28 \) minutes by keeping the total volume of the solution fixed at \( 200 \, \text{mL} \). The total volume of oxygen evolved at STP during the entire process is _______ \( \text{mL} \). (Nearest integer)
[Given:
\( Cu^{2+}(aq) + 2e^- \rightarrow Cu(s) \quad E^\circ_{\text{red}} = +0.34 \, \text{V} \)
\( O_2(g) + 4H^+ + 4e^- \rightarrow 2H_2O \quad E^\circ_{\text{red}} = +1.23 \, \text{V} \)
Molar mass of Cu \( = 63.54 \, \text{g mol}^{-1} \)
Molar mass of \( O_2 = 32 \, \text{g mol}^{-1} \)
Faraday Constant \( = 96500 \, \text{C mol}^{-1} \)
Molar volume at STP \( = 22.4 \, \text{L} \)]
