In the electrochemical cell $H_{2(g)}, 1 \ atm \ | \ H^+_{(aq)}, 1 \ M \ || \ Cu^{2+}_{(aq)}, 1 \ M \ | \ Cu_{(s)}$,which of the following statements is true?
- A$H_2$ is cathode,$Cu$ is anode
- BOxidation occurs at $Cu$ electrode
- CReduction occurs at $H_2$ electrode
- D$H_2$ is anode,$Cu$ is cathode
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