To calculate the standard electrode potential for the given reaction, we need to find the difference between the reduction potentials of the two half-reactions. Since the given reaction involves the reduction of Cu2+ to Cu and the oxidation of Zn to Zn2+, we need to reverse the Zn2+ to Zn half-reaction to make it an oxidation reaction.The standard electrode potential for the reduction of Zn2+ to Zn is -0.76 V. When we reverse the reaction, the sign of the standard electrode potential also changes. So, the standard electrode potential for the oxidation of Zn to Zn2+ is +0.76 V.Now, we can calculate the standard electrode potential for the overall reaction:E cell = E reduction - E oxidation E cell = E Cu2+ to Cu - E Zn to Zn2+ E cell = +0.34 V - +0.76 V E cell = -0.42 VThe standard electrode potential for the given reaction is -0.42 V.