My iPad 2 got submerged in water
It was submerged for about 15 minutes.
I took it out as soon as I realised it. It was off. I did not tried to turn it on, and proceded to dry it as much as I could.
It was still dripping, so I left it for around 2 hours vertical on an absorbant surface.
After that, I placed it in a big Tupperware, face down on rice, and covered it with rice.
It's been in the sealed Tupperware since then (2 days ago).
How long should I leave it there? What should I do next?