A:AnswerYes.
Streaming gameplay to sites such as YouTube and Twitch has been growing in popularity over the past few years, and the PS4 is able to send your game out live already. By adding the PS camera, you can add a corner face cam to streams, without having to run the stream through another source, such as a capture card.
https://www.ps4home.com/10-awesome-things-to-do-with-a-playstation-camera/
A:AnswerYou can get a 6 foot extension. Everything I have read says you cannot hook more than one up or it will not work. I have the same issue but since I am using it with a VR only I have the camera to the side and facing that direction with the VR. Good luck and write a response if you figure anything out. Looks like someone would create a small repeater for this application.