Given $E_{Cu^{2+}/Cu^{+}}^o = 0.15 \, V$,$E_{Cu^{2+}/Cu}^o = 0.34 \, V$. The standard electrode potential for the half-cell $Cu^{+}/Cu$ is ............. $V$.

  • A
    $0.38$
  • B
    $0.53$
  • C
    $0.19$
  • D
    $0.49$

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