What is the ruling on eating chicken that has been slaughtered Islamically and is placed, minutes after its slaughter, in hot water to remove its feathers, and does this hot water pose any health risks?

A chicken slaughtered according to Islamic law (dhakah shar'iyyah) is permissible to eat. The removal of feathers has no bearing on the validity of the slaughter. It is permissible to remove them by any method, as long as it does not result in health harm. As for the slaughter, it must be in accordance with Islamic law, and it is not permissible to eat it if it was killed by strangulation or electric shock.