The electrode potentials for \[C{{u}^{2\,+}}_{(aq)}+{{e}^{-}}\xrightarrow{{}}C{{u}^{+}}_{(aq)}\] and \[C{{u}^{+}}_{(aq)}+{{e}^{-}}\xrightarrow{{}}C{{u}^{+}}_{(s)}\] are \[+\,0.15\,V\] and \[+\,0.50\,V\] respectively The value of \[E{{{}^\circ }_{C{{u}^{2\,+}}/Cu}}\]will be: