The plus function only takes two arguments, so using it with arrayfun failed. A loop is apparently the only option, producing the summed matrix ‘S’:
C = {randi(9, 3, 3, 3), randi(9, 3, 3, 3), randi(9, 3, 3, 3), randi(9, 3, 3, 3)};
S = 0;
for k1 = 1:size(C,2)
S = S + C{k1};
end
This of course assumes all the matrices are the same size, as they are here.
