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Yes. Where conductors are used at radio frequencies, a 'skin effect' is thought to take place, and often the conductors are plated with silver, which has a higher conductivity than copper.

Another more common example is in electronic plugs and sockets, where the pins are often plated with gold, so as to minimize contact resistance. Gold is unreactive, and this gold plating offers little hold for corrosion that would otherwise interfere with the passage of electrical signals.

A third example would be in high voltage transmission lines, where a steel core is used for strength, and this is given a wrapping of aluminum sheathing. This is not true plating, but gives higher conductivity for a given span which would otherwise be limited by the breaking strain if aluminum alone. .

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