generally no. most plans are only good in the state in which they're issued. there are multi-state plans available in about 30 states and ultimately they'll be available throughout the country. some of these plans may offer cross-border coverage but not all will. i suggest you work with one of the marketplace navigators or an insurance agent certified to sell plans through your state's marketplace for personalized assistance.
as a nj resident will i be covered for services/hospitalizations in other states?