Electrons in a copper wire do not travel at the speed of electricity. Not even close.
Electricity travels at nearly the speed of light.
Electrons themselves travel like molasses:
In the case of a 12 gauge copper wire carrying 10 amperes of current (typical of home wiring), the individual electrons only move about 0.02 cm per sec or 1.2 inches per minute (in science this is called the drift velocity of the electrons.). If this is the situation in nature, why do the lights come on so quickly [when you flip the switch]? At this speed it would take the electrons hours to get to the lights.
This would be the case for direct current (DC). With the usual household alternating current (AC), the electrons barely move at all!