I have an electrical outlet in my home that got hot and melted. My son shut main breaker off and took outlet out of wall and he separated the wires and wrapped electrical tape around the wires. Is this safe until I can hire an electrician?
It is safe, as long as there is a cover (or the old outlet) covering the wires (even though they are taped up). I personally hate tape and would use a connector block to isolate the different wires. Then tape it up if you want.
You should find the breaker responsible for it and only switch that off. And put tape across it so, that its is difficult to flick on. Perhaps even put a note on it.