Given that the standard potentials \( \left(\mathrm{E}^{\circ}\right) \) of \( \mathrm{Cu}^{2+} / \mathrm{Cu} \) and \( …

Given that the standard potentials \( \left(\mathrm{E}^{\circ}\right) \) of \( \mathrm{Cu}^{2+} / \mathrm{Cu} \) and \( \mathrm{Cu}^{+} / \mathrm{Cu} \) are \( 0.34 \mathrm{~V} \) and \( 0.522 \mathrm{~V} \) respectively, the \( \mathrm{E}^{\circ} \) of \( \mathrm{Cu}^{2+} / \mathrm{Cu}^{+} \)is:

[JEE Main 2020, 7 Jan (Shift 1)]