The New England Journal of Medicine just published a study that tested how long the virus can remain stable on different kinds of surfaces within a controlled setting.
It was found on different surfaces for a different duration. The duration is a follow:
Copper- 4 hours
Cardboard-24 hours
Plastic -72 hours
Steel-72 hours
For weeks experts have maintained that the virus is not airborne. But it can travel through the air and stay viable for about 30 minutes.
Ref:-https://www.theguardian.com/us-news/2020/mar/31/how-long-does-coronavirus-live-on-different-surfaces.