Contact a wildlife rescue in your area to see if they can help. I doubt a wild baby rat can be successfully released back into the wild if it has become used to people.
Baby rat eyes open around 14 days. They aren't able to eat solid food yet. By 21 days old they're eating solid food and don't usually continue to nurse.
There's some info here in raising orphans:
Baby rat eyes open around 14 days. They aren't able to eat solid food yet. By 21 days old they're eating solid food and don't usually continue to nurse.
There's some info here in raising orphans: