c++ - Why can't I assign an array variable directly to another array variable with the '=' operator?

Why does the following assignment not work? I would like a
low-level explanation if possible. Also, here's the compiler error I get: incompatible
types in assignment of 'char*' to 'char
[20]'

class UCSDStudent
            {

 char name[20];


            public:

 UCSDStudent( char name[] ) {


            //this-> name = name; does not work! Please explain why not
 strcopy( this
            -> copy, copy ); //works 

            }

};