The electrode potentials for 
${\mathrm{Cu}}^{2+}\left(\mathrm{aq}\right)+{\mathrm{e}}^{-}\to {\mathrm{Cu}}^{+}\left(\mathrm{aq}\right) \mathrm{and} {\mathrm{Cu}}^{+}\left(\mathrm{aq}\right)+{\mathrm{e}}^{-}\to \mathrm{Cu}\left(\mathrm{s}\right) \mathrm{are} +0.15 \mathrm{V} \mathrm{and} +0.50 \mathrm{V}$ respectively. The value of ${\mathrm{E}}_{{\mathrm{Cu}}^{2+}/\mathrm{Cu}}^{\mathrm{o}}$will be.

• A

  0.150 V

• B

  0.500 V

• C

  0.325 V

• D

  0.650 V