2na 2na a square tray (shown above) is illed n w ds dineter 2a) which touch each other and grey discs hich fit igh h packing faction in the limit n tween th arg

2Na 2Na A square tray (shown above) is illed n w ds dineter 2a) which touch each other and grey discs hich fit igh h packing faction in the limit N tween th arger discs What is the (A2- MDET Phses