Consider the reaction below.<br /> $Zn(s)+Cu^{2+}(aq) \longrightarrow Zn^{2+}(aq)+Cu(s)$<br /> <br /> Which half reaction correctly describes the oxidation that is taking place?<br /> A. $Zn ( s ) \longrightarrow Zn ^{2+}( aq )+ e ^{-}$ <br /> B. $Zn (s) \longrightarrow Zn ^{2+}(a q)+2 e^{-}$ <br /> C. $Cu ^{2+}( aq )+2 e ^{-} \longrightarrow Cu ( s )$ <br /> D. $Cu ^{2+}( aq )+ e ^{-} \longrightarrow Cu ( s )$