copper tape

hello all, i was wondering could i put copper tape over my rails my thought is it would make a smoother ride and have less drops in power, my wife surprised me with a lambda power supply it says varialbe 0-20 power supply before connecting it to my setup is there anything i should do also i thought i saw a post about someone selling copper tape.thanks for all the help guys oh in the other box my first slot car book racing in the digital age and the slot car hand book.