Answer:
Yes, the tarnish due to silver
sulphide will be removed by placing the tarnished ware in an aluminium pan. Actually,
aluminium is a stronger reducing agent than silver. Therefore, it will reduce
silver ions \[(A{{g}^{+}})\] to metallic silver. It being silvery white in
colour will get slowly deposited on the walls of the silver ware and the
tarnish will be removed.
\[Al(s)+3A{{g}^{+}}(aq)\xrightarrow{\,}\,A{{l}^{3+}}\,(aq)+3Ag(s)\]
Alternatively, \[E_{cell}^{o}\,=E_{cathode}^{o}-E_{anode}^{o}=(-0.71)-(-1.66)=0.95\,\text{V}\]
is positive. The redox reaction is feasible and the tarnish will be
removed.
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